JPH05143659A - Dimension line creation method and device - Google Patents

Abstract

(57) [Abstract] [Purpose] Creating a dimension line that is appropriate and realistic so that the drawing position and inclination angle of the dimension line can be easily set / changed while viewing the drawing data while creating the dimension line. Is possible. [Structure] A display control unit 11 controls display by the display 3. The measurement point instruction unit 13 functions when a dimension line writing command is input by the command input unit 12, and causes the operator to indicate a measurement point on the drawing. The dimension line position setting unit 14 schematically shows the position shape of the dimension line, the dimension auxiliary line, and the dimension value with the measurement point as the starting point in a state where the drawing is displayed on the screen of the display 3 by the display control unit 11. The dimension line cursor shown is displayed, and the dimension line cursor is moved on the screen by the operation of the operator via the input device 2 to set the inclination angle of the dimension auxiliary line and the entry position of the dimension line and the dimension value. The writing control unit 16 determines the dimension line data on the drawing data according to the designated position obtained by the measurement point designating unit 13 and the inclination angle of the dimension auxiliary line obtained by the dimension line position setting unit 14 and the writing position of the dimension line and the dimension value. Write.

Description

Detailed Description of the Invention

[0001]

The present invention relates to CAD (computer-aid).
The present invention relates to an ed design) system, and more particularly, to a dimension line creating method and apparatus for writing dimension lines in drawing data created by a CAD system.

[0002]

2. Description of the Related Art Some CAD systems have a function for easily writing a diagonal dimension line in drawing data to be created. An example of the diagonal dimension writing function in the conventional CAD system will be described. (1) Display the dimension command menu and select diagonal dimension. (2) Specify the measurement point, the dimension reference point, and the dimension display direction for the dimension reference point. (3) The dimension value is placed in the center of the dimension line and the dimension line and dimension extension line are written. The oblique inclination angle is set in advance when setting the initial value.

[0003]

As described above, in the conventional CAD system, the diagonal dimension line can be easily created. However, in the conventional CAD system, the drawing tilt angle of the diagonal dimension is treated as a semi-fixed value set when setting the initial value, so that the drawing data cannot be displayed at the same time at the time of setting and it is easy. It cannot be changed to. The oblique dimension line is mainly used to make the dimension line and the dimension value easily distinguishable from the surrounding figures and the like on the drawing so as to make the dimension line and the dimension value easy to see. Therefore, if the drawing inclination angle of the dimension line can be easily changed with reference to the drawings, it is very effective for creating a more effective dimension line.

The present invention has been made in view of such circumstances, and it is possible to easily set / change the drawing position and the inclination angle of the dimension line in the dimension line creating function while observing the drawing data while creating the dimension line. As a result, it is an object of the present invention to provide a dimension line creating method and apparatus capable of appropriately creating a dimension line conforming to the actual condition.

[0005]

According to the dimension line creating method of the present invention, when a dimension line is written on drawing data in a CAD system, a measuring point instruction for instructing a measuring point on the drawing to which the dimension line should be written. Step, and the cursor corresponding to the position shape of at least one of the dimension line, the dimension extension line, and the dimension value can be moved according to the operator's operation, starting from the measurement point designated by the measurement point designating step on the display screen. And a position setting step of setting the inclination angle of the dimension extension line and the entry position of the dimension line and the dimension value according to the cursor, and the measuring point designating step and the position setting on the displayed and stored drawing data. A writing step for writing the data of the dimension line based on the designation by the step. That.

The dimension line creating apparatus according to the present invention is a dimension line creating apparatus for drawing a dimension line on a drawing in a CAD system, and the drawing display means for displaying drawing data on the display screen and the interactive display screen. Command input means for inputting a command including a dimension line writing command by operation, and functioning at least when the dimension line writing command is input, indicating a measurement point on the drawing to which the dimension line should be written Measuring point designating means for operating at least the measuring point and functioning in a state where a drawing is displayed on the display screen by the drawing displaying means, and a dimension line and a dimension extension line starting from the measuring point on the display screen. The cursor corresponding to the position shape of at least one of and the dimension value is displayed as movable according to the operation of the operator. Allowed by interactive manipulation by the operator using the cursor, the position setting means for setting a fill position of the tilt angle and the dimension lines and dimension extension line, on the drawing data displayed and stored,
It is characterized in that it comprises a writing means for writing the dimension line data based on the setting by the measuring point designating means and the position setting means.

[0007]

In the dimension line creating method and apparatus of the present invention, when a dimension line is written on drawing data in a CAD system, a measuring point on the drawing to which the dimension line should be written is designated and the above-mentioned is displayed on the display screen. The cursor corresponding to the position shape of at least one of the dimension line, dimension extension line, and dimension value starting from the measurement point is displayed as movable according to the operator's operation, and the tilt angle and dimension of the dimension extension line are displayed according to this cursor. By setting the entry position of the line and the dimension value and writing the dimension line data on the displayed and stored drawing data based on the designation of the measurement point and the dimension line position, the dimension line creation function The dimension drawing position and tilt angle can be set / changed easily while viewing the drawing data while creating the dimension line. To be able to create a dimension line in line with the actual situation.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a CAD system incorporating a dimension line creating apparatus according to an embodiment of the present invention. In the CAD system of the present embodiment, when drawing a dimension line on drawing data, the position of the measurement point on the drawing to which the dimension line is to be written is specified, and the dimension line starting from the measurement point on the display screen, Display the cursor corresponding to the position extension shape of the dimension extension line and the dimension value as movable according to the operation of the operator, and according to this cursor,
Setting the inclination angle of the dimension extension line and the entry position of the dimension line and dimension value, and writing the dimension line data on the displayed and stored drawing data based on the designation of the measurement point and dimension line position. You can

The CAD system shown in FIG. 1 includes a CAD processing unit 1, an input device 2, a display 3, an output device 4 and a storage device 5. The CAD processing unit 1 is a CPU
A central processing unit (not shown) is included, and CAD processing including dimension line creation processing is executed. The input device 2 includes an operation input device such as a keyboard and a pointing device such as a mouse, and inputs operation input information by an operator and other external information necessary for CAD processing to the CAD processing unit 1.
To enter. The display 3 displays necessary information such as processed image information by the CAD processing unit 1 and information related to input by the input device 2. The output device 4 includes a plotter, a printer, or the like, and outputs the image information processed by the CAD processing unit 1 as a hard copy. The storage device 5 is composed of, for example, a disk device such as a hard disk device, operates in association with the CAD processing unit 1, and stores data such as image information before, after, and during processing as necessary. .

In this case, the CAD processing unit 1 uses the normal CA.
In addition to the configuration for executing the D process, the display control unit 11 for executing the dimension line creating process according to the embodiment of the present invention,
It includes a command input unit 12, a measurement point designating unit 13, a dimension line position setting unit 14, a memory 15 and a writing control unit 16. The display control unit 11 controls the display on the display 3. Under the control of the display control unit 11, drawing data and the like are displayed on the screen of the display 3. The command input unit 12 performs a process for allowing the operator to input a command including a dimension line writing command by an interactive operation with the screen of the display 3, for example. Therefore, the command input unit 12 controls the display control unit 11 as necessary. The measurement point designating unit 13 functions at least when the dimension line writing command is input by the command input unit 12, and for example, the measurement on the drawing in which the dimension line should be written by an interactive operation with the screen of the display 3. A process for instructing a point by an operator is performed. Therefore, the measurement point instruction unit 13 also controls the display control unit 11 as necessary.

The dimension line position setting unit 14 functions at least in a state where a drawing is displayed on the screen of the display 3 by the display control unit 11, and the measurement point instructing unit 13 measures the measurement on the screen of the display 3. Starting from a point, for example, a cursor that schematically shows the position shape of the dimension line, the dimension extension line, and the dimension value (see FIG. 8) is displayed, and the cursor is displayed on the screen by the operator's operation via the input device 2. A process for setting the inclination angle of the dimension extension line and the entry position of the dimension line and the dimension value is interactively performed so as to be movable. Therefore, the dimension line position setting unit 14 also controls the display control unit 11 as necessary. The memory 15 stores information including CAD drawing data to be displayed by the display control unit 11. The stored contents of the memory 15 are transferred to the storage device 5 as needed. The memory 15 may share the memory used in the normal CAD processing in the CAD processing unit 1. The writing control unit 16 displays, on the drawing data displayed on the display 3 and stored in the memory 15, the designated position obtained by the measuring point designating unit 13 and the dimension auxiliary line obtained by the dimension line position setting unit 14. Write the dimension line data according to the inclination angle and the entry position of the dimension line and the dimension value.

Next, with reference to the flow chart shown in FIG. 2, the operation of the CAD system having such a structure, particularly for creating a dimension line, will be described in detail. It is assumed that the processing shown in FIG. 2 is started as an interrupt processing by a command input during a normal drawing or editing operation in the CAD system. First, the command input unit 1 of the CAD processing unit 1
When the operator selects and inputs a dimension line creation command via 2 (step S1), the system is set to the dimension line mode (step S2). When the dimension line mode is entered, the measurement point designating unit 13 of the CAD processing unit 1
The operator gives an instruction of the measurement point on the drawing to which the dimension line is to be entered (step S3). The instruction of the measurement point on the drawing by the measurement point instruction unit 13 is performed by an operator's input request via the screen of the display 3 and the operator performing an instruction operation according to the input. When the measurement point is designated in step S3, it is checked whether or not the series or parallel flag is turned on (step S4). If the series or parallel flag is turned off, the display control unit 11 is used. A dimension line cursor is displayed on the screen of the display 3 (step S5).

The dimension line cursor is a cursor (see FIG. 8) schematically showing, for example, the position shape of the dimension line, the dimension auxiliary line, and the dimension value, starting from the measurement point designated by the measurement point designating section 13. Yes, it can be moved freely on the screen by an operator's operation via the input device 2. The inclination angle of the auxiliary dimension line and the entry position of the dimension line and the dimension value are set by the interactive operation of the operator using the dimension line cursor (step S6).
The writing control unit 16 writes the dimension line data about the measurement point designated in step S3 on the drawing data displayed on the screen of the display 3 and stored in the memory 15 according to the dimension line position obtained in step S6. (Step S7). After that, it is determined whether or not there are more measurement points to be entered in the series dimension or the parallel dimension format (step S8), and if there are no more measurement points to be entered, the system shifts to the next process. Step S8
If it is determined that there is a measurement point to be entered, the series or parallel flag is turned on in step S9, and the process returns to step S3.

Whether or not there is a measurement point to be further entered in step S8 is determined by, for example, whether or not an operation for inputting the next measurement point is performed. If the serial or parallel flag is turned on, in step 3, the next measurement point, that is, only one point is designated and input, and step S
The flag is checked in step 4, and the process proceeds to step S7. If the serial or parallel flag is turned on, in step S7, the writing control unit 16 adds an additional serial dimension or parallel dimension format for the next measurement point according to the previously written dimension line data. The dimension line data is written on the drawing data displayed on the screen of the display 3 and stored in the memory 15. In this case, the serial dimension format (see Fig. 13) or the parallel dimension format (Fig. 14)
It is possible to appropriately select and set which of (see) is used.

Here, an example of a specific operation in this system will be described in detail. First, C as shown in FIG.
In the menu on the editing screen of the AD system, "Annotation"-
When "execute" (annotation means entry of annotations other than drawing such as dimension lines), a menu as shown in FIG. 4 is displayed. In the menu of Fig. 4, "Dimension"-"Element"
If you select (meaning that dimension is an element), a menu as shown in Fig. 5 is displayed, and if you select "Standard"-"Run" (meaning that you want to execute standard size) from this menu, the The menu becomes as shown in 6, and at the same time when "Automatic recognition"-"Run" is selected, a message such as "Please specify the first point" is displayed on the command line at the bottom of the screen of the display 3, for example. As a result, the operator is required to indicate the first measurement point on the drawing in which the dimension line should be entered. When you operate the mouse to indicate the first point, the command line on the screen will display "Please indicate the second point" as shown in Fig. 7. It is required to specify the second measurement point on the drawing to be filled in.

When the second point is designated by operating the mouse or the like, next, a dimension line cursor CS, which schematically shows, for example, the dimension line, the dimension auxiliary line, and the position shape of the dimension value, starting from the measurement point, is displayed. 8 is displayed, and at the same time, "Please indicate the position of the dimension line" is displayed on the command line on the screen, so that the operator is required to instruct the position of the dimension line. In this case, when the mouse or the cursor movement key of the input device 2 is operated, the dimension line cursor CS is moved up and down and left and right on the screen,
It is possible to change the inclination angle of the extension line and the entry position of the dimension line and the dimension value. When the dimension line cursor CS is located at a desired position, the return key or enter key is pressed or the trigger button of the mouse is pressed to set the inclination angle of the auxiliary dimension line and the writing position of the dimension line and the dimension value. To be done. In this case, by operating the dimension line cursor CS, it is possible to set the position of an oblique dimension line having an arbitrary tilt angle or a normal (vertical) dimension line having a tilt angle of 90 °.

When the position is set in this way, the dimension line is written at the set position on the drawing as shown in FIG. In this state, the command line on the screen will indicate "Please indicate the next point to measure", and the operator should enter the next dimension line in the series dimension or parallel dimension format. It is required to input instructions for the location. Here, if you do not specify the next measurement point,
If "Cancel" on the menu is sequentially selected, the dimension line creation processing is terminated. In the state as shown in FIG. 9, if the operator designates and inputs the next measurement point, the dimension line is further written in the series dimension format as shown in FIG. 13 or the parallel dimension format as shown in FIG. 14 (however, in FIG. And 14 show the normal dimension line with a tilt angle of 90 °, not the diagonal dimension line as in FIG. 9).

As described above, the dimension line at an arbitrary position can be created very easily. Further, particularly when creating the diagonal dimension line, the inclination angle of the dimension line can be set while observing the drawing display, so that the operability is very good. The present invention is
The present invention is not limited to the above-mentioned embodiment, and various modifications can be implemented. For example, the dimension line cursor has a shape corresponding to the dimension line and the dimension auxiliary line like the dimension line cursor CS1 shown in FIG. 10, or the dimension line cursor CS shown in FIG.
As shown in 2, a shape corresponding to the dimension line (in these cases, the dimension value is predetermined, for example, is arranged at the center of the dimension line and the operator is to recognize it in advance). Further, the dimension line cursor may have a shape corresponding to the dimension auxiliary line and the dimension value like the dimension line cursor CS3 shown in FIG. Alternatively, the dimension line cursor, the dimension extension line, and the dimension value may be displayed as they are. That is, the dimension line cursor is the dimension line,
The shape corresponding to at least one of the dimension extension line and the dimension value only needs to allow the operator to determine the inclination angle of the dimension extension line and the writing position of the dimension line and the dimension value.

[0019]

As described above, according to the present invention, C
When drawing a dimension line on drawing data in the AD system, instruct the measurement point on the drawing where the dimension line should be entered,
Dimension line starting from the measurement point on the display screen,
The cursor corresponding to the position shape of the extension line and / or the dimension value is displayed as movable according to the operation of the operator, and the inclination angle of the extension line and the entry position of the dimension line and the dimension value are displayed according to the cursor. Set, display and store on the drawing data,
The dimension line data is written based on the specified measurement points and dimension line position, and the dimension line drawing position and tilt angle in the dimension line creation function can be easily set while viewing the drawing data while creating the dimension line. It is possible to provide a dimension line creating method and apparatus capable of appropriately / actually creating a dimension line that can be changed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a CAD system incorporating a dimension line creating apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining a schematic operation of the CAD system of FIG.

FIG. 3 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG.

FIG. 4 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG.

5 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG.

FIG. 6 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG.

7 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system in FIG.

8 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system in FIG.

9 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system in FIG.

FIG. 10 is a diagram showing another embodiment of the dimension line cursor used in the dimension line creating apparatus according to the present invention.

FIG. 11 is a diagram showing another embodiment of the dimension line cursor used in the dimension line creating apparatus according to the present invention.

FIG. 12 is a diagram showing still another embodiment of the dimension line cursor used in the dimension line creating apparatus according to the present invention.

13 is a diagram schematically showing dimension lines in a serial format for explaining the operation of the CAD system in FIG.

14 is a diagram schematically showing parallel dimension lines for explaining the operation of the CAD system in FIG. 1. FIG.

[Explanation of symbols]

1 ... CAD processing unit, 2 ... Input device, 3 ... Display,
4 ... Output device, 5 ... Storage device, 11 ... Display control unit, 12
... Command input section, 13 ... Measuring point instruction section, 14 ... Dimension line position setting section, 15 ... Memory, 16 ... Writing control section.

Claims (8)

[Claims] 1. When entering a dimension line on drawing data in a CAD system, a measuring point instruction step for instructing a measuring point on the drawing to which the dimension line is to be entered, and an instruction on the display screen by the measuring point instruction step. The cursor corresponding to the position shape of at least one of the dimension line, dimension extension line, and dimension value starting from the measured point is displayed as movable according to the operation of the operator, and the inclination angle of the dimension extension line is displayed according to this cursor. And a position setting step for setting the entry position of the dimension line and the dimension value, and a writing step for writing the dimension line data on the displayed and stored drawing data based on the designation by the measuring point instruction step and the position setting step. A method for creating a dimension line, comprising: 2. The position specifying step displays a cursor corresponding to the position shape of the dimension line, and automatically sets the dimension value and the dimension auxiliary line in correspondence with the position of the dimension line. Dimension line creation method described in. 3. The position specifying step displays a cursor corresponding to the position shape of the dimension line and the dimension auxiliary line, and automatically sets the dimension value at the center of the dimension line. How to create a dimension line. 4. The dimension line creation according to claim 1, wherein the position specifying step displays a cursor corresponding to the position shape of the dimension line, the dimension auxiliary line and the dimension value. Method. 5. A dimension line creating apparatus for writing a dimension line on a drawing in a CAD system, wherein a dimension display command for displaying the drawing data on a display screen and a dimension line writing command are interactively operated on the display screen. Command input means for inputting a command including, at least a measurement point instruction means for instructing a measurement point on the drawing in which the dimension line should be entered, which functions when the dimension line entry command is input, At least the measurement point is instructed and functions in a state in which a drawing is displayed on the display screen by the drawing display means, and at least one of a dimension line, a dimension extension line and a dimension value with the measurement point as a starting point on the display screen. The cursor corresponding to the position shape was displayed as movable according to the operation of the operator, and this cursor was used. Position setting means for setting the inclination angle of the dimension extension line and the writing position of the dimension line and the dimension value by interactive operation by the operator, and the measuring point indicating means and the position setting means on the displayed and stored drawing data. And a writing means for writing the dimension line data on the basis of the setting according to 1. 6. The position setting means displays a cursor corresponding to the position shape of the dimension line, and automatically sets the dimension value and the dimension auxiliary line in correspondence with the position of the dimension line. Dimension line creation device described in. 7. The position specifying means displays a cursor corresponding to the position shapes of the dimension line and the dimension auxiliary line, and the dimension value is automatically set at the center of the dimension line. Dimension line creation device. 8. The dimension line creating apparatus according to claim 5, wherein the position designating means displays a cursor corresponding to the position shape of the dimension line, the dimension auxiliary line, and the dimension value.